Users Manual
Dear Customer, Thank you for choosing an ARISTON boiler. We guarantee that your boiler is a reliable and technically sound product. This Users Manual provides detailed instructions and recommendations for proper installation, use and maintenance. Remember to keep this manual in a safe place for future reference i.e. by the gas meter. Your local MTS Servicing Centre is at your complete disposal for all requirements. The guarantee on this appliance is valid for 12 months from the first day of installation. Repairs to the electric, hydraulic or gas circuits may be carried out only by your local authorised MTS Servicing Centre. Every attempt has been made to avoid errors of any kind in this Users Manual, the Management invites customers to inform of any inaccuracies which they may find. This will help to improve our service 2
TABLE OF CONTENTS 1. GENERAL INFORMATION page 4 Technical Information page 5 Control Panel page 6 2. OPERATING INSTRUCTIONS page 8 3. USEFUL INFORMATION AND TROUBLESHOOTING page 12 4. MAINTENANCE page 15 5. CHANGE OF GAS TYPE page 15 6. TIME CLOCK page 15 IMPORTANT! Please read this manual carefully. For additional information, please consult the Installation and Servicing Instructions. Make sure to keep the manuals provided with the appliance so that they can be used by the end-user, installer or our authorised engineer. 3
1. GENERAL INFORMATION MTS (GB) Limited support the initiative. Your installer will give you, and show you how to use, a logbook which will give you important information about your boiler, and heating system. Please have this logbook to hand whenever you contact a service engineer or us. All CORGI Registered Installers carry a CORGI ID card, and have a registration number. Both should be recorded in your boiler Logbook. You can check your installer is CORGI registered by calling CORGI direct on :- (01256) 372300. This is a combined appliance for the production of central heating (C.H.) and domestic hot water (D.H.W.). This appliance must be used only for the purpose for which it is designed. The manufacturer declines all liability for damage caused by improper or negligent 4 use. Do not allow children or inexperienced persons to use the appliance without supervision. If you smell gas in the room, do not turn on light switches, use the telephone or any other object which might cause sparks. Open doors and windows immediately to ventilate the room. Shut the gas mains tap (on the gas meter) or the valve of the gas cylinder and call your Gas Supplier immediately. If you are going away for a long period of time, remember to shut the mains gas tap or the gas cylinder valve. Before any intervention within the boiler it is first necessary to cut off the electrical power supply by turning the external switch to OFF. This manual may be kept in the front panel of the boiler.
TECHNICAL INFORMATION GENERAL DATA Heating input max-min Heating output max-min Efficiency at Maximum Thermal Capacity (see installation instructions) CENTRAL HEATING Operating Temperature max-min Maximum-Minimum Heating Pressure Built-in expansion vessel - Total capacity DOMESTIC HOT WATER Maximum-Minimum Temperature of Water for Domestic Use Working pressure max-min Flow rate T 35 C Flow rate T 35 C Minimum flow rate ELECTRICAL DATA Electrical Supply/ Frequency Power Consumption Protection of Electrical System CATEGORY Nominal Pressure/Methane Gas (G20) Nominal Pressure/Liquid Gas (G30-G31) kw kw % C bar litres C bar l/min gal/min l/min V/Hz W IP mbar mbar 23 kw 25.6-11.0 23.7-9.6 92.5 82-42 3-0.7 6 54-36 8-0.2 9.7 2.2 2.5 230/50 135 X4D 20-25 30-37 5
CONTROL PANEL FR019A 6 23 MFFI
LEGEND: A - On/Off button B - Central heating temperature adjustment C - Domestic hot water temperature adjustment D - Heating system pressure gauge E - Time clock F - Central heating selector G - Central heating L.E.D. (green) H - Fume sensor L.E.D. (yellow) I - Overheat and/or ignition failure (lockout) L.E.D. (red) J - Ignition failure (lockout) and/or overheat reset button K - ON/OFF L.E.D. (green) 7
2. OPERATING INSTRUCTIONS CAUTION Installation, start-up, adjustments and maintenance must be performed by a competent person only, in accordance with the current Gas Safety (Installation & Use) Regulations and the instructions provided. Improper installation may cause damage or injury to individuals, animals and personal property, for which the manufacturer will not be held liable. To ensure efficient and safe operation it is recommended that the boiler is serviced annually by a competent person. If it is known or suspected that a fault exists on the appliance, it must not be used until the fault has been corrected by a competent person. 8 HELPFUL SUGGESTIONS To get the most out of your boiler, we have provided you with some useful advice on proper use and maintenance: - Periodically check the system pressure using the pressure gauge D, make sure that the pressure is at 1.5 bar when the system is off and cool. If the pressure is below the minimum recommended value. Consult your installer for checking and refilling the system. D UT013Af
- The outer panels of the units case must only be cleaned with a damp cloth. Do not use abrasive cleaners. The control panel can be wiped with either a damp or dry cloth. Spray polishes must not be used on the control panel surface or knobs. Care must be taken in preventing any liquid entering the appliance. PRACTICAL TIPS - If the water is very hard, it is recommended that a water softener be added to the system so as to reduce the formation of limescale in the heat exchanger. This will ensure that the efficiency of the unit remains the same over time, reducing gas consumption and maintenance costs. - If the boiler should be out of use for a prolonged period, it is recommended that the electrical power supply be disconnected and that the external gas cock be closed. If low temperatures are expected, the boiler and system pipe work should be drained in order to prevent frost damage. - To improve comfort and take full advantage of the heat produced by the boiler, it is recommended that an external (room) thermostat be installed. - It is good practice to clean and service the appliance and central heating system every year. Call an Authorised Service Centre. 9
IGNITION PROCEDURE Press button A. The green L.E.D. K will illuminate indicating that the boiler K is ready to operate. The centralised electronic control unit will ignite the burner, without any A manual intervention but in response to the UT002A request for domestic hot water or heating. If, after approximately 10 seconds, the burner has not ignited, the boiler safety devices will shut off the gas and the red L.E.D. I illuminates. To reset J the ignition system, the reset J must be pressed and released. Should the boiler fail to ignite a second time, 10 I UT006A check that the external gas cock is open. If the problem persists, contact an Authorised Service Centre. WINTER AND SUMMER OPERATING MODES In the winter operating mode, the boiler will produce both central heating and domestic hot water. In the summer operating mode, the boiler will produce only domestic hot water. Press F button to select winter mode. The green L.E.D. G will illuminate. G F UT003A
ADJUSTING THE HEATING It is possible to set the temperature of the heating system by adjusting the knob B. By positioning the B indicator somewhere between 1 and 9, a temperature may be obtained which varies from approximately UT004A 40 C to about 80 C. EXTERNAL (ROOM) THERMOSTAT CONTROL If an external (room) thermostat is installed, it is recommended that the temperature of the heating system be set by means of the B knob, leaving it at 7-8 position in order to obtain the best performance from the boiler and to allow the regulation of the external temperature to function efficiently. SETTING THE HOT WATER FOR DOMESTIC USE Both in the winter and summer mode, the temperature of the domestic hot water may be adjusted by using the C knob. A delivery temperature for the C water may be chosen in a range from 36 C to about 56 C, depending on the flow rate of the water and the position UT005A of the knob between 1 and 9 settings. 11
TURNING OFF CENTRAL HEATING To turn off the central heating, press the F button; the respective green L.E.D. G will go off. The boiler will stay in summer mode, only providing domestic water on request. TURNING OFF THE BOILER To turn the boiler off, press the button A ; the respective green L.E.D. K will go off. Close the gas cock located under the boiler and turn the K electricity supply switch (located outside the boiler) to the OFF A position. 12 G F UT003A UT002A 3. USEFUL INFORMATION AND TROUBLESHOOTING BOILER SHUTDOWN SITUATIONS The boiler is equipped with safety devices that intervene in certain situations and shut it off. Most of these situations are communicated by means of the L.E.D.s and at times the user may be able to remedy them. SHUTDOWN DUE TO IGNITION FAILURE In the event that the automatic ignition of the burner has failed, the red L.E.D. I will illuminate. In order to reset the ignition, the button J must be pressed and released. Should the boiler fail to ignite a second time, check
that the external gas cock is open. If the problem persists, contact an Authorised Service Centre. SHUTDOWN DUE TO OVERHEATING In the event that the safety limit is exceeded for the temperature of the water in the boilers exchanger, the thermostat shuts off the boiler and the red L.E.D. J I illuminates. To remedy this situation, wait a few minutes to allow the exchanger to I cool down, then press and release the reset UT006A J I UT006A button J. If this situation occurs frequently, contact an Authorised Service Centre. SHUTDOWN DUE TO INSUFFICIENT WATER CIRCULATION If the boiler is off, one possible cause for this state is an insufficient pressure of water in the system. Check the system pressure on the pressure gauge D and if it is less than 0.5 bar, consult your installer for checking and refilling the system. If the boiler does not start up again, contact an Authorised Service Centre. If there are frequent drops in pressure within the system, have a plumber D UT001A 13
check the heating system for possible water leaks. TEMPORARY SHUTDOWN DUE TO DEFECTIVE DISCHARGE OF EXHAUST FUMES The boiler is fitted with safety devices, which in the event of a defective discharge of exhaust fumes, automatically interrupts the gas supply, thereby shutting off the boiler. The shut-off of the boiler is temporary and is indicated by the illumination of the yellow L.E.D. H for a period of about 15 minutes. Once this time period has passed and the H discharge state of exhaust fumes has returned to normal, the UT006A 14 boiler automatically turns back on. IMPORTANT! If this situation occurs frequently, contact an Authorised Service Centre. so that they may check that the exhaust fumes are being expelled correctly and that the area is ventilated properly. ANTI-FROST DEVICE If the water temperature goes below 3 C, the burner turns on at minimum power in CH mode until the water in the boiler has reached a temperature of about 33 C. This function is only activated when the boiler is operating perfectly and - the system pressure is sufficient; - the boiler is powered electrically; - gas is being distributed.
4. MAINTENANCE 6. TIME CLOCK Schedule an annual maintenance check-up for the boiler with a competent person. Correct maintenance always results in savings in the cost of running the system. 5. CHANGE OF GAS TYPE Our boilers are designed to function either with Natural Gas (methane) or LPG gas. If you need to changeover from one gas to the other, one of our Authorised Service Centres should be contacted. UT011Ap NOTE: the time clock is for central heating control only. The time clock is provided with 96 switches, called riders, each of which covers a time interval of 15 minutes (four per hour). When a rider is switched from the inside (off setting) to the outside of the 15
clock border (on setting), the circuit is closed (switch on) for a period of 15 minutes and then the boiler starts if the room thermostat (if installed) or the heating thermostat require heat (heating function on). EXAMPLE To set the heating of your home in the time interval from 7.00 am to 9.30 am and from 7.00 pm to 10.00 pm every day: - rotate the outer ring of the clock in a clockwise direction until the correct time of day (24h) lines up with the arrow on the clock (at approx. 2 o clock position); - under no circumstances should the minute hand be moved manually; - make sure all the switches, i.e. the riders, are placed on the inside of the clock border; 16 - pull outward the riders for 7.00 am and 9.30 am, and then all riders between these two; - repeat this for 7.00 pm and 10.00 pm. Other heating intervals may be set in the same way. The timer has approximately 150 hours of battery back up for power failure. The clock is provided with a selector switch with three positions (see figure): 1. Position I CONSTANT: in this position, the clock circuit is always closed (switch on), therefore the boiler will constantly be on and will only shut off upon the UT014A
request of the room thermostat (if installed) or the heating thermostat; 2. Position O HEATING OFF: in this position, the clock circuit is always open (switch off) and the boiler will therefore never ignite for heating; UT014A TECHNICAL DATA Ambient temperature: - 10 C to + 55 C Running reserve: 150 h (not for 1.5 V DC) Shortest switching time: 15 minutes Programmable: Every 15 minutes 3. Central Position PROGRAMMING ACTIVE: in this position, the programming set by the user is active. UT014A 17
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Manufacturer: Commercial subsidiary: Merloni TermoSanitari SpA - Italy MTS (GB) LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: http://www.mtsgb.ltd.uk E-mail: info@mtsgb.ltd.uk Technical Service Hot Line: (01494) 539579 Cod. 2399841567000 Stampa: Bieffe Recanati